Home / 31,588,462.15-43,588,070.12-18,530,956.78

Finding the Fourth Proportional to 31,588,462.15, 43,588,070.12 and 18,530,956.78

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Solution

The fourth proportional to 31,588,462.15, 43,588,070.12 and 18,530,956.78 is: 25,570,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,588,462.15 : 43,588,070.12 = 18,530,956.78 : x
  2. Step 2: Convert to fraction form
    31,588,462.15/43,588,070.12 = 18,530,956.78/x
  3. Step 3: Cross multiply
    31,588,462.15x = 43,588,070.12 × 18,530,956.78
  4. Step 4: Simplify right side
    31,588,462.15x = 807,728,643,454,686.62
  5. Step 5: Solve for x
    x = 807,728,643,454,686.62/31,588,462.15
  6. Step 6: Final answer
    x = 25,570,369.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.